I need to encrypt all the PDFs in a folder. There are too many to do individually, so I created an Action. Files encrypted with the Action can not be opened by Mac Preview, which is a requirement. When Preview prompts for the password, it accepts it, but shows me a single blank gray page, no matter how many pages are in the document. I have tried it with both Acrobat 7 and Acrobat X encryption and I get the same results. Strangely, if I manually protect the files one by one, I have no issues opening the files in Mac Preview. Is there a way I can fix this issue?
OS: 10.12.6
Acrobat: Build: 18.11.20035.264580
Preview: Version 9.0 (909.18)
